Fluid-pressure cylinder.



mo. 821,668. PATENTED MAY 29, 1906.

' '1. MITCHELL.

FLUID PRE$SURE CYLINDER. APPLICATION FILED SEPT. 13, 1902.

iii

i it. M i i iiiio. ,tititi" ii tttsnfiteti i. i i

Application iiioti Fioptemtm it wil whom it Watt/y concern; e yiinrior eeti to permit the diseiiet'gge oi 5 it known that it, "ifirotauis J. iiiiliUHELL, tile "on: ii the oyiindei port to cit .en oi tiieiUniteri Eitetesresiding station 1 sir. 'iiitie o weiis oi the mitte neiisviiie, in the county oi Fayette end Eitete 3 ei'e out ewe at points sdjecent to 5 oi Pennsyit'enio, have invented or (iisot "t 'tbifiiti eii oi the Weiis oi? seiti s, eertein new enri nsefni improvement in. iTitiittPressnre Cylinders, oi Wiiieii improve-s merit the ioiiowing; is e spec'itiootion.

This intention reietes to certsin improve to inentsin finittpressnre cylinders, espeoisiip' rime oi tiiet oiess used 11111 1111 13 ont ewe on its enter side i Witit-port', Whioii er Weii g i p wment Witn the 1.. I @ne the tiiiifit'fl" ettentioiiit i iii-WW r in the use oi eomprosseti-eir pt tiiet t re, sue" ien eiipension oi t'iie eir ies-ciing: from. to tits net port orports Wiii siisoria ileitt tie it mint ciiseiierge snti tiiie moist-tare I in the Wiii'iieoome'eongeeiiei anti eeeninniii ree-(iiiy understood tiret by reso iete st the eitiisust-ports, in some cases e'ndosing enii union the distenee to ioe tow tireiy oio. same end seriously interereti by tire fluid tron tiie eyiinrier to the opt-notion oi the pump. on i eir no rneteriei eiipension Wiii occur tin-- i i object of the intention is to the on." inis pesseii beyond tiny soriieees on i mi construct the enhsust-ports "Winch eoniiensetion ooniri ooonr. it. time it end oonti oi the veines that the air exiieusteri found by experience tiiet in mines Where the :troin tire opiintie'i' toasty directly into the sir is very inoist there is precticeiiy no so]? to outer sir tire expension end oonseqnent reieotion oi congeeieci moisture srounti tile out tinotion in temporetnre occurring et' e point lets, end when, its in the pretei'ieii construe iiistsnt item the t'eives end eiihsnstport. tion outlets ere ermngeti on the under 33 Wi itii end other objects in View, es sirio oi tire eyiintier the timid cooled by ere 'Wiii more iniiy iiereinei ter eppesr, the int en" pension 'Wiii iteil swep from the ports iii eiy 353 tion oonsi in: the iiio /"ei construction snti to be skilled thereby i ii sprengenient oi pierts ilereins'itoi described, Hitting time deserioeti the invention, whet iiinstreteri-in the eoeoniponying (in-swings, 1soienneriis- 35 sncipsttionit iy pointed out in the appended. i. The coin netion with efiiiidpressure eioims .ioe. understood that various cy'iinder netting o, voine-eiisnibet provided 90 eiienges in the rim, proportions, size, end with e eirouier'weii in which are two ports of inner tietsiis of tine structure to e3 be inetie erent sires, the iofger port being open, end

Without tie e tingfrom the spirit or seoritiio eii times porn "hing free ooinnninieetion st any oi tile" edventeges oi the invention. between the VitiVB-Ei1t11liJeT end the outer lii'ie ecoompenying cirim ing iiinstretes in. sir, one. an osoiiietory' site eirengeo Within seotionei elevation. e, pumpoyiinder eon seiii o ninber enriiim ii'zg; estroight-woitport s cteri in eoooriienoe with the iniveitrtion. that is inovebie to at position in eiinenient tie oyiindei' i is wronged. to contein e pie With one oi he waits oi" the sin eiiei' poit iesci e5 ton 2 0i ordinary construction. O ntiieiower ins; irom the cylinder, the ports opening side of the cyiintier ere two vsivewimmbers downs-em to permit the esoepe oi? moisture end a, ttrrengeci st or neer'tiie ends of the" by grsvit ojt'iintier end. oonnected to e chest 5, to which The combination with it fluirt-pressere tine sir pressure-supply pipe extends. These cylinder having it tithe-chamber in which e t i 18iV EkCilEtl'fliDBI'S ere oonnecteti with the cylt ,portion is out swey to form on exhaust-port ineier by ports 6, anti Within seid chambers oi extensive sires, open sit eii times to the st to site osciiietory veins-s7, which may be turned mospiiere, cyiirnier-port ieetiing betweei'ito permit the pessoge of sir. under pressure the 0371' 'ider enri tine oive-chember, end on itroin tile etiest though the port at one enci of oscillatory naive disposedn'itiiii seid chain- Ber and movable ta giace bile Fort eifih-e'h in communication with a source of pressure supply, or diretiy with the outer zmir', the discharge-opening formed by the Valve and its casing at the end of said cylinder-part, being of gradmfiydncreasing area from the end of the cylinder-port to the final discharge-port.

lib. testimony Whreef I have helunto set my hand.

THOMAS J. MITCHELL. E itEQsS S: F. GAXTHER,

DMRSHALL A. @HRISTYG 

